Spent a whole day spotting at LHR last year with arrival and departure on BA from T5. Encountered no problems whatsoever when we moved to T4 by bus, but we did have a security check upon entering T4, being only with handluggage. Apart from that we had a perfect day till the runway swap at 15.00. I don't know if that trick still works, though.ehusmann wrote:Are you flying BA?
In that case I think you will arrive and leave from T5. Possibly leave from T4, but I doubt it. And unless you leave the airport all together, you cannot go to another terminal. Staff will check your boarding pass and will not allow you to go to another terminal if your flight leaves from T5.
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